Feank i



(No Model.)

F. I. MYERS. SEMAPHORE SIGNAL.

Patented June 29, 1886.

WMD/wwe o N PETERS Plwxu-Lnlwgmpher, washingmn. D.CI

UNITED STATES PATENT OFFICE.

FRANK l. MYERS, OF NEV YORK, N. Y.

SEMAPHORE-SIGNAL.

SPECIFICATION forming part o Letters Patent No. 344,494, dated June 29,1886.

Application filed January 152, 1886.

T0 all whom it may concern,.-

Be it known that I, FRANK I. MYERS, of the city of New York, county andState of New York, have invented a new and Improved Semaphore-Signal, ofwhich the following speciiication is a full, clear, and exactdescription.

This invention relates to a semaphore-signal for railroads, and is soconstructed that even should the chain or wire which connects thefan-signal with the hand-lever expand or contract the fan will always beplaced at its proper position-that is to say, the fan will either beplaced in its danger position or in its clear position, independent ofordinary variations in length of the operating mechanism.

The invention consists in the various elements of improvementhereinafter more fully pointed out.

In the accompanying drawings, Figure l is a side elevation of myimproved signal, showing the fan raised. Fig. 2 is a front view thereof,showing the fan lowered.

The letter A represents a post slotted near the top to form two cheeks,a, which form the bearings for a pivot, I), to which the usualfansignal, c, is rigidly secured. The pivot b extends bodily through thecheeks a, as shown. At one end the pivot b carries anotched disk, d,which is engaged by the tooth of a second disk, c, pivoted to the postA. rlhe disk l should be cut away at its circumference to the right andleft of the notch, so as to forni two concavities and afford space forthe disk c. The disk e is provided with a grooved flange, f, that isembraced by a chain, g. One end of this chain carries a weight, 71 whileits other end passes under a loose pulley and is connected to ahand-lever, z', adapted to be vibrated backward and forward.

o p are the usual spectacle and back lights attached to pivot b. XVhcnthe fan-signal is to be lowered, the hand-lever i is drawn backward torevolve disk e in the direction of the Serial No. 188,373. (No model.)

arrow, Fig. l. The tooth on this disk will now enter the notch on diskd, revolving said disk with it and pulling the fan c down. After thetooth has left the notch the disk c may be still further revolvedwithout affecting the position of the fan. Vhen the hand-lever is lockedin its backward position, the fan c will be likewise locked in its downor clear position. On the release of the hand-lever the wei ght L willrevolve disk a forward to engage notched disk d and revolve the same toraise the fau. After the fan has been raised the disk c may revolvestill further without affecting its position. In its upright positionthe fan c is properly supported by means of the disk e engaging one ofthe concavities of disk d, and thereby preventing said disk fromturning, as shown in Fig. l. It will be seen that even should theoperating chain or wire eX- pand or contract to a certain extent the fanc will always be positively operated, inasmuch as it is the temporaryengagement of the toothed disk with the notched disk, and not the amountof maximum motion ofthe chain, which determines the position of the fau.

I claim as my invention-` l. The combination of post A with pivot b,carrying fan c and notched disk d, and with the toothed disk e, thatengages notched disk d, and is operated by chain g, substantially asspecified.

2. 'lhe combination of post A with pivot b, fan c, and notched disk (l,which is cut away at the sides of the notch, and with the toothed diske, chain g, and lever i, substantially as and for the purpose speciiied.

3. The combination of post A with pivot b, fan c, notched disk d,toothed disk e, having grooved flange f, and with the chain g, weight h,and hand-lever t', substantially as speciiied.

FRANK I. MYERS.

W'itnesses:

F. v. BRIEsEN, Roer. II. ROY.

